Question

a racetrack is 3.2 miles long. a racecar driver travels a total of 35.2 miles around the track. which multiplication equation can be used to find how many times the racecar driver travels around the track?
a) 3.2r = 35.2
b) r = 3.2(35.2)
c) 3.2 = 35.2r
d) r = 35.2(3.2)

Explanation:

Step1: Define the relationship

Let \( r \) be the number of times the driver goes around the track. The length of the track is 3.2 miles, and the total distance is 35.2 miles. The total distance is the track length multiplied by the number of laps, so the equation is \( 3.2r = 35.2 \).

Step2: Match with options

Looking at the options, option A is \( 3.2r = 35.2 \), which matches our derived equation.

Answer:

A) \( 3.2r = 35.2 \)